It seems like we managed to reveal a glimmer of self-awareness in robots. 

Here’s Quartz on the matter: 

Bringsjord programmed three robots to think that two of them had been given a special “dumbing pill” that would not allow them to speak. Their task was to identify which robots received the pill. When the Nao robot on the right tried to speak, it heard its voice, and its voice alone. That’s when it waved its hand and said: “I know now. I was able to prove that I was not given a dumbing pill.